Carbon fiber post-treatment water curtain type washing device
By using a water curtain-type water washing device in the carbon fiber post-treatment water washing device, the water falling from the water curtain groove is used to form a cleaning water curtain, which solves the problems of tow wear and wool accumulation caused by the guide roller, and achieves an efficient and energy-saving water washing effect.
Patent Information
- Application Number
- CN202420770389.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-04-15
AI Technical Summary
The existing carbon fiber post-treatment and washing devices require the installation of guide rollers in the washing tank, which increases the probability of abnormal production of tow wear, wool wire accumulation and roll wrapping, especially underwater guide rollers with wool wire accumulation and roll wrapping are difficult to handle.
The water curtain type water washing device is used to form a cleaning water curtain to clean the carbon fiber tow through the water curtain groove, cancel the guide rollers in the water washing groove, and use the design of the circulating water pump and the water curtain groove to achieve efficient cleaning.
There is no need to install guide rollers in the washing tank, which avoids problems such as tow wear, wool wire accumulation and roll wrapping, significantly improves the washing efficiency and water resource utilization rate, and reduces the floor area of the washing device.
Smart Images
Figure CN222809711U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of carbon fiber processing device design, and specifically relates to a carbon fiber post-processing water curtain type washing device. Background Art
[0002] After carbon fibers are carbonized at high temperatures to form carbon filaments, they need to be post-processed to obtain finished carbon fibers. The post-processing process usually includes three steps: surface treatment, water washing, and sizing. The commonly used surface treatment method is to etch some functional groups on the surface of highly carbonized carbon fibers through anodizing to improve the composite performance with resin materials. The commonly used electrolytes for anodizing surface treatment are weak bases such as ammonium bicarbonate and tetraethylammonium hydroxide. After the surface treatment is completed, the residual electrolyte on the filament bundle needs to be removed by water washing to avoid damage to the carbon fiber caused by residual electrolyte impurities.
[0003] At present, the common washing methods of carbon fiber post-processing washing process are immersion and spraying. The immersion method requires the tow to be immersed in the washing tank through the guide roller to run, and the residual electrolyte is washed by immersion. The washing efficiency of immersion is low, and usually a longer running (immersion) path is required to ensure the washing effect, resulting in a large footprint of the washing equipment. At the same time, hair is easily deposited in the tank, which may cause roller entanglement or affect the appearance quality of the carbon fiber finished product. In order to make up for the defect of low efficiency of immersion washing, some washing equipment will be equipped with spraying to improve the washing efficiency and reduce the total length of the washing tank. Spraying requires the tow to pass through the liquid surface again and spray water above the liquid surface for washing, so more guide rollers are needed to repeatedly change the tow path. The increase in guide rollers leads to an increase in the resistance of the tow running, which is not conducive to the tension balance control of the post-processing section; at the same time, the increase in guide rollers will increase the probability of production abnormalities such as tow wear, hair accumulation, and roller entanglement, and the difficulty of handling hair accumulation and roller entanglement of guide rollers, especially underwater guide rollers, is greatly increased. In order to at least partially solve the above-mentioned technical problems existing in the prior art, the utility model is proposed. Utility Model Content
[0004] Therefore, the utility model provides a carbon fiber post-processing water curtain washing device, which can solve the problem that the carbon fiber post-processing washing device in the prior art needs to configure guide rollers in the washing tank to guide the movement of the carbon fiber bundle. The setting of the guide rollers will increase the probability of production abnormalities such as bundle wear, hair accumulation, and roller entanglement, especially the technical problem that the accumulation of hair on the underwater guide rollers and the difficulty in handling the roller entanglement are relatively large.
[0005] In order to solve the above problems, the utility model provides a carbon fiber post-processing water curtain type washing device, comprising:
[0006] A water washing tank having an upward opening, wherein a carbon fiber tow passes through an area corresponding to the opening;
[0007] A water curtain trough is erected on the opening, the water curtain trough has a water droplet and a water supply port, the water supply port is controllably connected to the water supply component, and the water output from the water supply component can enter the water curtain trough through the water supply port and fall into the water washing trough from the water droplet;
[0008] Guide rollers are also provided upstream and downstream of the traveling direction of the carbon fiber tow, and the guide rollers are located outside the water washing tank.
[0009] In some embodiments,
[0010] There are a plurality of water curtain grooves, and the plurality of water curtain grooves are stacked up and down, and the water outlets respectively provided in the water curtain grooves are sequentially spaced along the traveling direction of the carbon fiber tows.
[0011] In some embodiments,
[0012] Along the upstream to downstream direction of the carbon fiber tows, the heights of the water outlets of the water curtain grooves are getting lower and lower.
[0013] In some embodiments,
[0014] The water supply component includes a circulating water tank and a circulating water pump. The water washing tank has a drain pipe, which is connected to the circulating water tank. The pump inlet of the circulating water pump is connected to the circulating water tank, and the pump outlet of the circulating water pump is controllably connected to each of the water curtain tanks.
[0015] In some embodiments,
[0016] The pump outlet of the circulating water pump is connected to a pump outlet main pipe, and the pump outlet main pipe is communicated with each of the water curtain grooves through branch pipes, and each of the branch pipes is provided with a first on-off valve.
[0017] In some embodiments,
[0018] The pump-out main pipe is provided with a conductivity detection component, and the conductivity detection component is used to detect the conductivity of the pumped liquid in the pump-out main pipe.
[0019] In some embodiments,
[0020] A waste discharge pipeline is provided at the bottom of the circulating water tank, and a second on-off valve is provided on the waste discharge pipeline. The second on-off valve can be in a connected state when the conductivity detected by the conductivity detection component is higher than a preset value, and can be in a cut-off state when the conductivity detected by the conductivity detection component is not higher than the preset value.
[0021] In some embodiments,
[0022] A float and a water replenishment control component are also provided in the circulating water tank. When the water level in the circulating water tank is lower than a preset water level, the float can trigger the water replenishment control component to perform a water replenishment action to replenish deionized water into the circulating water tank. When the water level in the circulating water tank is not lower than the preset water level, the float can trigger the water replenishment control component to perform a water replenishment cut-off action to stop replenishing deionized water into the circulating water tank.
[0023] In some embodiments,
[0024] A first overflow port is provided on the wall of the circulating water tank. The setting height of the first overflow port is higher than the preset water level. The first overflow port is connected to the waste discharge pipeline and is located on the outflow side of the second on-off valve.
[0025] In some embodiments,
[0026] A second overflow port is configured on the tank wall of the water washing tank; and / or,
[0027] The width of the water outlet of the water curtain trough is not less than the width of the carbon fiber tow.
[0028] The utility model provides a carbon fiber post-processing water curtain type washing device which has the following beneficial effects:
[0029] The water falling from the water curtain trough forms a cleaning water curtain to fully clean the carbon fiber bundles passing through the opening area. There is no need to set corresponding guide rollers in the water washing tank to guide the carbon fiber bundles to below the cleaning liquid surface in the water washing tank. Since no guide rollers are set in the water washing tank, the occurrence of production abnormalities such as bundle wear, hair accumulation and roller entanglement caused by setting guide rollers in the water washing tank in the prior art is eliminated. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. The drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.
[0031] Figure 1 It is a structural schematic diagram of a carbon fiber post-processing water curtain type washing device of the utility model;
[0032] Figure 2 yes Figure 1 Schematic diagram of the overhead structure of the water curtain trough.
[0033] The accompanying drawings are marked as follows:
[0034] 1. Washing tank; 11. Second overflow port; 12. Third on-off valve; 2. Water curtain tank; 21. Drain port; 22. Water supply port; 31. Circulating water tank; 311. Waste discharge pipe; 312. Second on-off valve; 313. First overflow port; 32. Circulating water pump; 321. Pump outlet manifold; 322. First on-off valve; 33. Float; 4. Conductivity detection component; 100. Carbon fiber tow. DETAILED DESCRIPTION
[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0036] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.
[0037] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0038] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.
[0039] See also Figure 1 to Figure 2 As shown, according to an embodiment of the utility model, a carbon fiber post-processing water curtain type washing device is provided, comprising:
[0040] The washing tank 1 has an upward opening, and a carbon fiber tow 100 passes through the area corresponding to the opening. Figure 1 The orientation shown is for reference, the carbon fiber tow 100 passes from the left side of the washing tank 1 to the right side thereof, and the carbon fiber tow 100 between the left and right tank walls of the washing tank 1 is also the washing area thereof;
[0041] The water curtain trough 2 is erected (it can be erected in the air through a corresponding fixed bracket) above the opening, and the water curtain trough 2 has a water outlet 21 and a water supply port 22. The water supply port 22 is controllably connected to a water supply component (not labeled in the figure), and the water output from the water supply component can enter the water curtain trough 2 through the water supply port 22 and fall into the water washing tank 1 from the water outlet 21. It can be understood that the water curtain trough 2 is specifically a trough body facing the opening, which guides the water entering the water supply port 22 and allows this part of the water to form a water curtain under the action of its own weight at the water outlet 21;
[0042] Guide rollers (not shown in the figure) are also provided upstream and downstream of the traveling direction of the carbon fiber bundle 100, and the guide rollers are located outside the water washing tank 1, that is, no guide rollers are provided in the water washing tank 1 in the utility model.
[0043] In this technical solution, the water falling from the water curtain trough 2 forms a cleaning water curtain to fully clean the carbon fiber tow 100 passing through the opening area. There is no need to set corresponding guide rollers in the water washing tank 1 to guide the carbon fiber tow 100 to below the cleaning liquid surface in the water washing tank 1. Since no guide rollers are set in the water washing tank 1, the occurrence of production abnormalities such as tow wear, hair accumulation and roller entanglement caused by setting guide rollers in the water washing tank in the prior art is eliminated.
[0044] In some embodiments,
[0045] There are a plurality of water curtain grooves 2 , which are stacked up and down, and the water outlets 21 of each water curtain groove 2 are arranged in sequence and at intervals along the traveling direction of the carbon fiber tow 100 .
[0046] In this technical solution, by arranging a plurality of the water curtain grooves 2 at intervals in the traveling direction of the carbon fiber tow 100, the carbon fiber tow 100 can be flushed with water curtains multiple times, which can significantly improve the washing efficiency and ensure the washing effect.
[0047] In some embodiments, along the upstream to downstream direction of the carbon fiber tow 100, the height of the water outlet 21 of each water curtain trough 2 becomes lower and lower. Since the water curtain in the utility model is mainly formed by the falling of the water body's own weight, the height of the water outlet 21 of each water curtain trough 2 is successively lowered along the traveling direction of the carbon fiber tow 100, ensuring that the water curtain for the first cleaning of the carbon fiber tow 100 has a larger flushing kinetic energy, which can further improve the water washing effect.
[0048] The aforementioned water supply component can specifically be a water source such as a water tank, a water tower, etc. that can provide plasma water. In some embodiments, the water supply component includes a circulating water tank 31 and a circulating water pump 32. The water washing tank 1 has a drain pipe, and the drain pipe is connected to the circulating water tank 31. The pump inlet of the circulating water pump 32 is connected to the circulating water tank 31, and the pump outlet of the circulating water pump 32 is controllably connected to each of the water curtain tanks 2.
[0049] In this technical solution, the water received in the washing tank 1 can be circulated and pumped for utilization through the circulating water pump 32, thereby realizing the recycling and repeated utilization of the water body after washing, improving the utilization rate of water resources, and being more energy-saving and environmentally friendly.
[0050] In some embodiments, the pump outlet of the circulating water pump 32 is connected to a pump outlet main pipe 321, and the pump outlet main pipe 321 is connected to each of the water curtain troughs 2 through branch pipes (not marked in the figure), and each of the branch pipes is provided with a first on-off valve 322.
[0051] In this technical solution, the water pumped out of the main pipe 321 is supplied to each water curtain trough 2 through each branch pipe, and a first on-off valve 322 is set on each branch pipe to control the on-off of the corresponding water flow. The number of water curtain troughs 2 to be used for water curtain cleaning at the same time can be selected according to actual cleaning needs.
[0052] In a preferred embodiment, a conductivity detection component 4 is provided on the pump-out main pipe 321, and the conductivity detection component 4 is used to detect the conductivity of the pumped liquid in the pump-out main pipe 321. The aforementioned conductivity detection component 4 can specifically adopt a conductivity detector commonly used in the industry, and the utility model does not specifically limit its specific type, specification and model.
[0053] In this technical solution, a corresponding conductivity detection component 4 is provided at the pump outlet main pipe 321 to detect the electrolyte content in the recycled water on-line, thereby preventing the phenomenon that the conductivity of the water used in the water curtain is too high, resulting in poor subsequent cleaning effect.
[0054] As a preferred implementation, a waste pipe 311 is provided at the bottom of the circulating water tank 31, and a second on-off valve 312 is provided on the waste pipe 311. The second on-off valve 312 can be in a connected state when the conductivity detected by the conductivity detection component 4 is higher than a preset value, and in a cut-off state when the conductivity detected by the conductivity detection component 4 is not higher than the preset value. That is, when the electrolyte content in the water body is high, the circulating water tank 31 is controlled to discharge waste water in time and replenish new water to ensure efficient and high-quality cleaning of the carbon fiber tow 100.
[0055] The circulating water tank 31 is also provided with a float 33 and a water replenishment control component (not shown and not labeled in the figure). When the water level in the circulating water tank 31 is lower than a preset water level, the float 33 can trigger the water replenishment control component to perform a water replenishment action to replenish deionized water into the circulating water tank 31. When the water level in the circulating water tank 31 is not lower than the preset water level, the float 33 can trigger the water replenishment control component to perform a water replenishment cut-off action to stop replenishing deionized water into the circulating water tank 31. The aforementioned water replenishment control component can specifically be a valve connected to the float 33. When the float 33 drops below the preset water level, its falling process will drive the valve to open the corresponding water replenishment port, and the external deionized water will be replenished into the circulating water tank 31 in time. This process will be accompanied by the connection of the aforementioned waste discharge pipeline 311. The water replenishment volume of the water replenishment port should be greater than the water discharge volume of the waste discharge pipeline. In this way, when the liquid level in the circulating water tank 31 rises to the preset water level, the float 33 rises with the rise of the liquid level. The rising process will drive the valve to close the aforementioned water replenishment port, and the water replenishment is completed at this time.
[0056] In some embodiments, when the difference between the inlet and outlet flow rates of the circulating water pump 32 is large, there is a risk of rising water level and overflow in the circulating water tank 31. In order to eliminate this risk, a first overflow port 313 is provided on the tank wall of the circulating water tank 31. The setting height of the first overflow port 313 is higher than the preset water level, and the first overflow port 313 is connected to the waste pipe 311 and is located on the outflow side of the second on-off valve 312.
[0057] In some embodiments, there is also a risk of overflow due to excessive liquid level in the water washing tank 1, so a second overflow port 11 is constructed on the tank wall of the water washing tank 1 to ensure the controllability of liquid overflow. A third on-off valve 12 for turning on and off the flow of liquid is also provided on the pipeline between the water washing tank 1 and the circulating water tank 31.
[0058] The first on-off valve 322 and the third on-off valve 12 may be manually controlled valves or solenoid valves, and the second on-off valve 312 is preferably a solenoid valve so as to form a trigger linkage with the conductivity detection component 4 .
[0059] The width of the water outlet 21 of the water curtain trough 2 is not less than the width of the carbon fiber tow 100 to ensure that the full width of the water curtain is flushed on the carbon fiber tow below.
[0060] Parallel and spaced baffles (not shown) are arranged on both sides of the traveling path of the carbon fiber tow 100 to prevent water from splashing out.
[0061] The following combination Figure 1 and Figure 2 The specific scheme of the utility model is further described:
[0062] The water curtain trough (i.e. the aforementioned water curtain trough 2, the same below) can be divided into 5 sections (such as Figure 1 As shown) or more sections, the specific configuration quantity can be selected according to the actual needs of the water washing effect. The depth of the water curtain groove is about 50mm, and there are groove wall enclosures on three sides, and an overflow plate with a height of about 20mm on one side. After the overflow, a vertical water curtain is formed downward through the diversion (that is, the position corresponding to the downspout 21); the opposite side (that is, the position corresponding to the water supply port 22) is connected to the water supply pipeline (that is, the aforementioned branch pipe, the same below), and a water curtain control valve (that is, the aforementioned first on-off valve 322, the same below) is provided at the end of the pipeline to control the size of each water curtain. There is a top plate with a length of about 50mm on the top of the water curtain groove on the water supply side to prevent the upper water from splashing out after entering the water curtain groove.
[0063] The water receiving tank (i.e. the aforementioned water washing tank 1, the same below) is a through tank 1.2 m long and 0.3 m deep. Figure 1 No guide rollers are set at the left and right ends of the range shown in the figure, and the running carbon fiber (that is, the aforementioned carbon fiber tow 100, the same below) passes over the water receiving trough, and the vertically downward water curtain passes through the carbon fiber and falls into the water receiving trough. Anti-splash baffles are designed on both sides of the water receiving trough parallel to the carbon fiber running path. The water receiving trough has overflow drainage (that is, the aforementioned second overflow port 11, the same below), and the discharged water enters the water circulation system (that is, the circulation system composed of a circulating water trough 31, a circulating water pump 32 and corresponding pipelines, etc.), and a shut-off valve (that is, the aforementioned third on-off valve 12) is designed on the discharge pipe.
[0064] The water discharged from the water receiving tank is circulated back to the water circulation tank (i.e. the aforementioned circulating water tank 31, the same below) through the pipeline. The water circulation tank is a 1m square through tank, and a high liquid level overflow port (i.e. the aforementioned first overflow port 313, the overflow height is about 0.9m) is designed in the tank; a waste outlet (i.e. the aforementioned waste outlet pipeline 311) controlled by a solenoid valve (i.e. the aforementioned second on-off valve 312) is provided at the bottom of the tank; a new deionized water replenishment port (i.e. the aforementioned water replenishment port) is designed in the tank, and a float liquid level valve (i.e. the aforementioned float 33 and the corresponding water replenishment control component) is formed. The control component) controls the addition of deionized water. When the liquid level is lower than about 0.8m, the float level valve is opened to add new clean deionized water. A circulating water outlet is designed at the bottom of the tank, which is connected to the circulating water outlet pipeline to the circulating pump (that is, the aforementioned circulating water pump 32). The circulating pump adjusts the circulation rate by the operating frequency. An online conductivity detector (that is, the aforementioned conductivity detection component 4) is designed on the pipeline after the pump (that is, the aforementioned pump outlet main pipe 321), which can realize automatic control of the conductivity of the replenished water together with the solenoid valve at the bottom of the circulating tank. The circulating water is pumped into each water curtain tank by a pump.
[0065] Test Example 1:
[0066] The utility model tests the washing effect comparison between the water curtain type washing device of the present application and the existing washing device using immersion and spraying washing technology. The washing device a selected for comparison only adopts the immersion method, the length of the washing tank is 5 meters, and the carbon fiber is immersed in the tank throughout the whole process. The washing device b selected for comparison adopts the method of immersion combined with spraying. The tow repeatedly enters and leaves the washing tank through the guide roller, and the transmission roller part above the water is sprayed to enhance the washing effect. Take 50g of the washed carbon fiber sample and soak it in 500mL ultrapure water for 24 hours, and measure the final conductivity of the ultrapure water to reflect the washing effect of different washing devices. The results are shown in Table 1.
[0067] Table 1 Comparison of washing effects of different washing devices
[0068] Water washing device Final ultrapure water conductivity (μS / cm) Water curtain washing device 12.3 Water washing device 67.4 Water washing device 20.6
[0069] Compared with the water washing devices in the prior art, the water curtain type water washing device has a better water washing treatment effect. While ensuring the water washing effect, the water curtain type water washing device reduces the footprint of the water washing device and fundamentally eliminates the problems of transmission roller deposits and roller entanglement in the washing tank that are difficult to handle.
[0070] It is easy for those skilled in the art to understand that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.
[0071] The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the utility model should be included in the protection scope of the utility model. The above is only a preferred implementation of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the utility model, and these improvements and variations should also be regarded as the protection scope of the utility model.
Claims
1. A water curtain type washing device for post-processing carbon fiber, characterized in that: include: A water washing tank (1) having an upward opening, wherein a carbon fiber tow (100) passes through an area corresponding to the opening; A water curtain trough (2) is erected on the opening, the water curtain trough (2) having a water outlet (21) and a water supply outlet (22), the water supply outlet (22) being controllably connected to a water supply component, and water output from the water supply component can enter the water curtain trough (2) through the water supply outlet (22) and fall from the water outlet (21) into the water washing trough (1); Guide rollers are also provided upstream and downstream of the traveling direction of the carbon fiber bundle (100), and the guide rollers are located outside the water washing tank (1).
2. The carbon fiber post-processing water curtain washing device according to claim 1 is characterized in that: There are a plurality of water curtain grooves (2), and the plurality of water curtain grooves (2) are stacked up and down, and the water outlets (21) respectively provided in the water curtain grooves (2) are sequentially arranged at intervals along the traveling direction of the carbon fiber bundle (100).
3. The carbon fiber post-processing water curtain washing device according to claim 2 is characterized in that: Along the upstream to downstream direction of the carbon fiber bundle (100) traveling, the height of the water outlet (21) of each water curtain trough (2) becomes lower and lower.
4. The carbon fiber post-processing water curtain washing device according to claim 1, characterized in that: The water supply component comprises a circulating water tank (31) and a circulating water pump (32); the washing tank (1) has a drain pipe, the drain pipe is connected to the circulating water tank (31); the pump inlet of the circulating water pump (32) is connected to the circulating water tank (31); the pump outlet of the circulating water pump (32) is controllably connected to each of the water curtain tanks (2).
5. The carbon fiber post-processing water curtain washing device according to claim 4, characterized in that: The pump outlet of the circulating water pump (32) is connected to a pump outlet main pipe (321), and the pump outlet main pipe (321) is connected to each of the water curtain grooves (2) through branch pipes, and each of the branch pipes is provided with a first on-off valve (322).
6. The carbon fiber post-processing water curtain washing device according to claim 5, characterized in that: The pump-out main pipe (321) is provided with a conductivity detection component (4), and the conductivity detection component (4) is used to detect the conductivity of the pumped liquid in the pump-out main pipe (321).
7. The carbon fiber post-processing water curtain washing device according to claim 6, characterized in that: A waste discharge pipeline (311) is provided at the bottom of the circulating water tank (31), and a second on-off valve (312) is provided on the waste discharge pipeline (311). The second on-off valve (312) can be in a connected state when the conductivity detected by the conductivity detection component (4) is higher than a preset value, and in a cut-off state when the conductivity detected by the conductivity detection component (4) is not higher than the preset value.
8. The carbon fiber post-processing water curtain washing device according to claim 7, characterized in that: The circulating water tank (31) is also provided with a float (33) and a water replenishment control component. When the water level in the circulating water tank (31) is lower than a preset water level, the float (33) can trigger the water replenishment control component to perform a water replenishment action to replenish deionized water into the circulating water tank (31). When the water level in the circulating water tank (31) is not lower than the preset water level, the float (33) can trigger the water replenishment control component to perform a water replenishment cut-off action to stop replenishing deionized water into the circulating water tank (31).
9. The carbon fiber post-processing water curtain washing device according to claim 8, characterized in that: A first overflow port (313) is provided on the wall of the circulating water tank (31), the first overflow port (313) is arranged at a height higher than the preset water level, and the first overflow port (313) is connected to the waste discharge pipeline (311) and is located on the outflow side of the second on-off valve (312).
10. The carbon fiber post-processing water curtain washing device according to claim 1, characterized in that: The washing tank (1) has a second overflow port (11) configured on the tank wall; and / or, The width of the water outlet (21) of the water curtain trough (2) is not less than the width of the carbon fiber tow (100).